What Is Parkinson’s Disease? Symptoms, Causes, and Early Signs Explained

​Symptoms, Causes, and Early Signs Explained
Parkinson’s disease is a progressive neurological disorder that affects movement, coordination, and many other body functions. It develops when certain nerve cells in the brain that produce dopamine—a chemical that helps control movement—gradually stop working or die. As dopamine levels decline, people may begin to experience symptoms such as tremors, stiffness, slowed movement, and balance problems.

Many people believe Parkinson’s disease only causes tremors, but the condition is far more complex. Understanding what Parkinson’s disease is, how it develops, and the early signs to watch for can help individuals seek medical care sooner and begin treatments that improve quality of life. Keep reading to learn more.

How Parkinson’s Disease Affects the Brain
Parkinson’s disease primarily affects a part of the brain called the substantia nigra, which is responsible for producing dopamine. Dopamine plays a critical role in controlling smooth and coordinated muscle movements. When dopamine-producing cells become damaged, communication between the brain and muscles becomes disrupted.
This disruption leads to the hallmark movement symptoms associated with Parkinson’s disease.

Common Symptoms of Parkinson’s Disease
Symptoms of Parkinson’s often develop gradually and may vary from person to person. The most common motor symptoms include:

• Tremor: Shaking, usually beginning in the hand or fingers while at rest
• Bradykinesia: Slowed movement that makes everyday tasks more difficult
• Muscle rigidity: Stiffness in the arms, legs, or trunk
• Postural instability: Difficulty with balance and coordination

However, Parkinson’s disease also includes non-motor symptoms that many people do not initially associate with the condition. These may include:

• Sleep disturbances
• Loss of smell
• Constipation
• Depression or anxiety
• Changes in speech or facial expression

These non-motor symptoms can sometimes appear years before movement symptoms begin.

What Causes Parkinson’s Disease?
The exact cause of Parkinson’s disease is still being researched. Scientists believe it is likely the result of a combination of genetic and environmental factors.
A small percentage of cases are linked to inherited gene mutations. However, most people with Parkinson’s do not have a family history of the disease. Environmental exposures, aging, and other biological processes may also play a role in damaging dopamine-producing brain cells.

Who Is Most at Risk?
Parkinson’s disease most commonly affects people over the age of 60, although younger individuals can develop it as well. Risk factors may include:

• Age
• Family history
• Exposure to certain environmental toxins
• Male gender (men are slightly more likely to develop PD)

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While there is currently no cure for Parkinson’s disease, treatments such as medication, exercise, physical therapy, and lifestyle strategies can help manage symptoms and improve daily life.
Early awareness of symptoms allows individuals to seek medical evaluation and begin supportive care as soon as possible.

Why Support Matters
A diagnosis of any form of Parkinson’s can feel overwhelming. But with the right support and resources, individuals can maintain independence, quality of life, and emotional well-being.
For resources, referrals, and support in navigating Parkinson’s and related conditions, contact the Parkinson’s Association of Southwest Florida at www.paswfl.org or call 239-417-3465.

For over 25 years, PASWFL has provided free, high-quality services and programs to individuals and families touched by Parkinson’s disease in Southwest Florida. Their goal is simple: help people live well with PD, regardless of where they are in their journey.
Each week, PASWFL offers more than 25 free programs and support groups, including:

• Wellness and fitness classes
• Speech Exercise classes
• Educational seminars
• Support for care partners
• Support groups

There are no fees to become a member, and PASWFL welcomes anyone touched by PD.
Take the First Step Toward Living WellIf you suspect early Parkinson’s or have been recently diagnosed, you don’t have to face it alone.
👉 Click here to sign up for the PASWFL newsletter
https://parkinsonassociationswfl.org/signup-enews.html
👉 Click here to become a member…it’s free and confidential
https://parkinsonassociationswfl.org/signup.html
​To learn more, visit www.paswfl.org and discover the power of support, education, and community.